怎么通过XMLGregorianCalendar获得当前时间及当前时间的前十分钟的时间



怎么通过XMLGregorianCalendar获得当前时间及当前时间的前十分钟的时间 ，就是获取两个时间点？

两次输出就是两个时间点

   Date date = new Date();
         Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
javax.xml.datatype.DatatypeFactory dtf = javax.xml.datatype.DatatypeFactory.newInstance();
javax.xml.datatype.XMLGregorianCalendar  date1=dtf.newXMLGregorianCalendar(
calendar.get(calendar.YEAR),
calendar.get(calendar.MONTH)+1,
calendar.get(calendar.DAY_OF_MONTH),
calendar.get(calendar.HOUR),
calendar.get(calendar.MINUTE),
calendar.get(calendar.SECOND),
calendar.get(calendar.MILLISECOND),
calendar.get(calendar.ZONE_OFFSET)/(1000*60));
System.out.println(date1);
javax.xml.datatype.Duration duration= javax.xml.datatype.DatatypeFactory.newInstance().newDuration(-432000000) ;
date1.add(duration);
request.setCreatedAfter(date1);
System.out.println(date1);